As I sat on the dock looking over the calm surface of the water, I almost hated to cast my line. The water looked like a mirror, clear and unbroken. I knew when I cast my line into the water; ripples would run to the edge, breaking the glass.
I looked across the lake for the longest time almost meditating on the serenity of it. Then I woke up. If I didn’t cast my line, I wouldn’t catch any fish. So I looked out one more time, and snapped my pole. Sure enough, when the bobber hit the surface the ripples started to swell. They grew larger and larger, each one followed by another until the entire surface was broken and distorted. Just as it looked as though the calm may return around my line, I got a hit, and the rings started again.
As I reeled in the fish, the surface was torn wide open. I got the fish in, took a picture, and let him go. I was very happy with the catch, he was a big fish.
As I started to cast again, I couldn’t help but think of our Lord Jesus Christ when he came by Peter and Andrew casting their nets. “Follow me, and I will make you fishers of men.” He said to them.(Matt. 4:19 He didn’t promise there would be no ripples or resistance from the “water” that is the world. If we are to “catch” souls, there will be ripples, large ones that will extend to the edge of the waters. Even today, when we witness for our Lord, many ripples appear in the calm. But the fact remains, if we don’t cast our lines, and cause ripples, we won’t win souls to Christ.
Do not fear the ripples; the reward may be a large fish!

A good devotional. With some editing, it could be published, I think. The line "I knew when I cast my line into the water ripples would appear." doesn't need a semi-colon after water.
Put it just before "he was a big fish."
Close the parenthesis around your text. And give us white lines between the paragraphs.
The analogy is so good.

Really good work. Great descriptive phrases. And those ripples make me think that as we share the gospel, others will hear and believe, and the kingdom of God will grow as the ripples across the water. Got me thinking, something a writer should always strive for. Thanks.